Control for spray-heads for air-washers.



I S.R.SHELDON. CONTROL FOR SPRAY HEADS FOR AIR WASHERS.

APPLICATION FILED JULY 30,1912.

- 1,057,781 Patented Apr. 1, 1913.

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S. R. SHELDON.

CONTROL FOR SPRAY HEADS FOR AIR WASHERS.

APPLICATION FILED JULY 30,1912.

1,057,781 I Patented Apr. 1,1913.

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UNITED STATES PA @FFKQE.

CONTROL FOR SPRAY-HEADS FOR AIR-WASHERS.

Specification of Letters Patent.

Patented Apr. 1,1913.

Application filed. July 30, 1912. Serial No. 712,345.

To all whom it may concern:

Be it known thatI, SIDNEY RANDOLPH SHELDON, of the town of Galt, in thecounty of Waterloo, in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in Controls for Spray- Heads forAir-Washers, of which the following is the specification.

My invention relates to improvements in controls for spray heads for airwashers as disclosedin my companion application, Ser. No. 712,346, andthe object of the invention is to provide a simple device for supplyingWater pressure to a spray head to operate the flushing mechanism thereofand to supply such water at predetermined intervals operated by thewater falling from the spray heads and it consists essentially of asupporting frame, a valve comprising a cylindrical outer member providedwith a pipe leading to the spray heads, and a stand pipe leading to theatmosphere above the spray heads, and an inlet pipe, and cylindricalinner member having an open end opposite to the inlet pipe of the outercylindrical member, a peripheral opening in circumferential alinementwith the pipe opening leading to the spray heads, and a longitudinalpassage for connecting the pipe opening leading to the spray heads withthe stand pipe opening leading to the atmosphere when the valve is inits normal position, an operating spindle connected at the opposite endof the inner cylindrical member and extending through the outercylindrical member, a tiltable pan swung upon a suitable support to oneside of its center, a counterweight for the pan designed to hold the pannormally horizontal, and a link and lever connection between theoverhanging portion of the pan and the operating spindle of the valve ashereinafter more particularly explained by the following specification.

Figure 1, is a general perspective view of my control device. Fig. 2, isa side elevation of my control device. Fig. 3, is an enlarged sectionaldetail of the valve showing the inner cylindrical member thereof infull. Fig. 4, is a sectional view of the valve in its normal position.Fig. 5, is a similar view to Fig. 4 showing the valve in the position iing upwardly from the longitudinal member A A is a longitudinal rodsecured at its ends to the verticals A and A and A is a a similar rodsecured at its ends to the verticals A and A.

A and A are cross bars connecting the verticals A and A and theverticals A and A respectively.

I A is a longitudinal bearing rod connect- 4 ed at its ends to the crossbars A and A B is a pan preferably triangular in cross section and swungat a point opposite its apex on the bearing bar-1 A be seen that a smallportion of the pan at its deep end extends to one side of the bearingbar A and the major portion of the pan extending toward the shallow endextends to the other side of the bar A It will, thus B is acounterweight by which the pan B is normally held in a horizontalposition. The counterweight B is supported by an arm B secured to asuitable portion of the pan at its deep end.

C is a valve comprising an outer cylindrical casing 0 having an inletorifice C at one end thereof and a bearing orifice C at the opposite endthereof. The periphery .of the casing C is provided with an opening Cinto which is threaded a i leading to the spray heads of an air washerand an opening C provided with a pipe C leading to the atmosphere.

D is the inner cylindrical member of the i valve having an open end Dopposite the inlet opening 0 of the outer casing. The end of the casingC is provided with a closing cap C in which the opening is located 7pair.

and which is preferably removable for the purpose of assembling theparts or for re- The inner member D is provided with a peripheralopening D circumferentially in alinement with the opening (3* leading tothe spray heads and a longitudinal groove D connecting the opening C"with the opening G when the valve is in its normal position.

The bearing opening 0 is preferably provided with a suitable stufiingbox C D is the operating spindle of the valve which extends into theclosed end of the cylindrical inner member through the bearing opening Gand the stufiingbox C E is an operating arm secured at one end to thespindle D and connected at its opposite end by a link E to the shallowend of the pan B by a bracket E -to which the opposite end of the linkis pivotally connected.

The outer casing C of the valve is pro vided with supporting lugs Cextending laterally from each side thereof and suitably secured to therods A and A Having described the principal parts involved in myinvention I will briefly describe. the operation of the same. In thenormal position shown in Figs. 1, 2, 3, 4L and 6 the water contained inthe pipe C leading to the spray heads passes through the groove D intothe pipe C until it finds its own level. The pan B is gradually filledwith water from any suitable source until the counterweight B isoverbalanced. The shallow end of the pan then falls into the dottedposition indicated in Fig. 2 of the drawings drawing upon the link E andarm E. This operation carries the opening E into alinement with theopening C. The water then passes through the inlet pipe, inner valvemember D, opening D into the opening C and pipe C leading to the sprayheads. As soon as the pan B is emptied the counterweight acts to carrythe pan back to its normal position and thus cary the valve through thepipe C is relieved through the groove D and pipe C.

It willthus be seen from this description that I have devised a verysimple form of operation of spray heads and particularly to that form ofspray heads in which it is required to convey water pressure to theheads at predetermined intervals and by which the pipe leading to thespray heads is maintained full of water when the valve is in the reliefpressure position.

What I claim as my invention is 1. In a control device for spray headsfor air washers, a valve comprising an outer cylindrical member having awater inlet at one end, a peripheral opening, a spray head supply pipesecured in the opening, and a peripheral opening leading to theatmosphere, an inner cylindrical member open at the end in alinementwith the inlet opening of the outer cylinder, a peripheral opening incircumferential alinement with the; spray head pipe opening, and alongitudinal groove normally connecting the spray head pipe opening withthe opening leading to the atmosphere, as and for the purpose specified.

2. In a control device for spray heads for air washers, a valvecomprlsing an outer cylindrical member having a water inlet .at one end,a peripheral opening, a spray head supply pipe secured in the opening,and a peripheral opening and pipe leading to the atmosphere, an innercylindrical member open at the end in alinement with the inlet openingof the outer cylinder, 2.

peripheral opening in circumferential alinement with the spray head pipeopening, and

a longitudinal groove normally connecting the spray head pipe openingwith the opening leading to the atmosphere, and means I forreciprocating the sleeve at predetermined intervals to alternately carrythe peripheral opening of the inner valve member and the longitudinalgroove into alinement with the p y head P pe Opening; as

i and for the purpose specified. 1

3. In a control device for spray heads for 3 air washers, a valvecomprising an outer cylindrical member having a water inlet at one end,a peripheral opening, a spray head.

supply pipe secured in the opening, and a peripheral opening leading tothe atmos:

phere, an inner cylindrical member open at the end in alinement with theinlet opening tervals to alternately carry the peripheral opening of theinner valve member and the I longitudinal groove into alinement with thespray head opening, as and for purpose a V specified.

valve which is particularly adapted to the 4:. In a control for sprayheads for air ;of the outer cylinder, a peripheral opening i -1 incircumferential alinement with the spray zhead pipe opening, and alongitudinal groove normally connecting the spray head pipe opening withthe opening leading to the atmosphere, and hydraulic means for re 1ciprocating the sleeve at predetermined into its normal position so thatthe pressure opening at one end, and a peripheral opening provided witha spray head supply pipe,

; and an opening leading to the atmosphere, 1 an inner cylindricalmember having an open end in alinement with the supply opening of theouter casing, a peripheral opening in circumferential alinement with theopening leading to the spray heads and a groove normally connecting theopening leading to the spray heads with the opening leading to theatmosphere, a tilting pan, a lever carried by the cylindrical member ofthe valve, a name to this specification in the presence of linkconnected to one end of the tilting pan, two Witnesses. an adjustableconnection between said link and lever, and a counter-Weight at the op-5 posit-e end of the pan for returning the pan Witnesses:

to normal position. ROBERT DoNALDsoN,

In testimony whereof I have signed my J. A. STEPHENSON.

SIDNEY RANDOLPH SHELDON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

